Aquaculture sewage treatment plant
Technical Field
The utility model relates to an aquaculture sewage treatment technology specifically indicates an aquaculture sewage treatment plant.
Background
Aquaculture has been developed rapidly in recent years as a target industry for agricultural structure adjustment in our country. The culture area, culture variety and yield are continuous and first in the world for many years. At present, more than 160 aquaculture species are produced in China, wherein more than 100 species and more than 60 species of sea water and fresh water are produced. With the continuous development of aquaculture industry, the aquaculture mode is developed from semi-intensification to high-intensification and industrialization, at present, water areas and mudflats within 15 meters and the like in coastal depth from south to north in China are almost developed, and the land industrialized aquaculture area is more than 1.0 multiplied by 108 square meters. Due to the continuous increase of the culture scale and the culture density, the problems of water quality deterioration, diseases, environmental pollution and the like caused by solid wastes generated in the culture process are increasingly prominent. Therefore, how to effectively control the generation load of the aquaculture solid waste and realize resource utilization is an important subject facing the sustainable development of the aquaculture industry in China.
Aiming at the problems, a novel and convenient aquaculture sewage device is urgently needed to be developed to meet resource utilization.
SUMMERY OF THE UTILITY MODEL
To the problem that has aquaculture sewage to handle at present, the utility model discloses an aquaculture sewage treatment plant. The method is characterized in that: the utility model discloses an aquaculture sewage treatment plant, its characterized in that: comprises a two-stage evolution device, an automatic cleaning filter and a foam separation tower. Wherein the automatic cleaning filter is a primary purification device, and the foam separation tower is a secondary purification device;
the automatic cleaning filter comprises an electric cabinet, a hydraulic motor, an electromagnetic valve, a blow-down valve, a water inlet, a water outlet, a dirt suction device, a pressure difference switch, a coarse filter screen and a fine filter screen;
the foam separation tower comprises a water inlet pipe, an aeration pipe, spherical filler, a water outlet pipe, a foam pipe, an emptying pipe, a water outlet tank and a water level adjusting plate;
the automatic cleaning filter is characterized in that a water inlet is arranged on the outer wall of the left side of the automatic cleaning filter, a coarse filter screen is arranged in the filter where the water inlet is arranged, a fine filter screen is arranged in the coarse filter screen, a water outlet is arranged outside the filter where the fine filter screen is arranged, the outer sides of the coarse filter screen and the fine filter screen are connected with a differential pressure switch, a dirt suction device is arranged at the top of the automatic cleaning filter, the left side of the top of the dirt suction device is connected with a solenoid valve, the left side of the solenoid valve is connected with a drain valve, a hydraulic motor is arranged on the right side of the top of the dirt suction device, an electric cabinet control solenoid valve and the differential pressure switch are connected, the water outlet is connected with a water inlet pipe through a stainless steel pipe, so that sewage is transferred from a primary purification device to a secondary purification device, a plurality of spray nozzles are uniformly arranged on, the bottom left side is connected with the outlet pipe, is provided with out the basin on the lateral wall of foam knockout tower, goes out the vertical water level regulating plate that is equipped with in the basin, and water level regulating plate will go out the basin and fall into the communicating intake zone in upper portion and play pool, and the outlet pipe includes first outlet pipe and second outlet pipe, and the one end intercommunication of first outlet pipe bottom of foam knockout tower, the other end intercommunication intake zone, the one end intercommunication play pool of second outlet pipe, the other end discharges the liquid after the foam separation.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model discloses an aquaculture solid waste processing device can automatically clear up the filter screen according to the pressure difference;
(2) the concrete foam separation mode of the aquaculture solid waste treatment device of the utility model is realized by aeration and spherical filler matching,
(3) the utility model discloses an among the aeration equipment, gaseous aeration pipe from the lower part gets into, can evenly set up a plurality of aeration heads or perforate on the aeration pipe, and gaseous upwards through the spherical filler at middle part, landfill leachate is downwards with gas mixture, forms the foam at the upper portion. The purification degree of the sewage can be greatly increased;
(4) the utility model can adopt various aeration modes, namely a perforation aeration mode and an aeration head aeration mode.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the automatic cleaning filter of the present invention;
FIG. 3 is a schematic view of a foam separation column of the present invention;
FIG. 4 is a schematic structural view of the sewage suction device of the present invention;
fig. 5 is a schematic view of the structure of the water inlet pipe of the present invention.
Number designation in the figures: 1. automatically cleaning the filter; 2. a foam separation column; 3. a stainless steel tube; 10. an electric cabinet; 11. a hydraulic motor; 12. an electromagnetic valve; 13. a blowoff valve; 14. a water inlet; 15. a water outlet; 16. a dirt suction device; 17. a differential pressure switch; 18. coarse filtration; 19. a fine filter screen; 21. a water inlet pipe; 22. an aeration pipe; 23. a spherical filler; 24. a water outlet pipe; 25. a foam tube; 26. an emptying pipe; 27. a water outlet groove; 28. a water level adjusting plate; 161. a suction force generating device; 162. a suction nozzle; 211. a water inlet pipe body; 212. and (4) a spray head.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1: referring to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the present invention provides a technical solution: the utility model provides an aquaculture sewage treatment plant which characterized in that: comprises a two-stage evolution device, an automatic cleaning filter 1 and a foam separation tower 2. Wherein the automatic cleaning filter 1 is a primary purification device, and the foam separation tower 2 is a secondary purification device;
the automatic cleaning filter 1 comprises an electric cabinet 10, a hydraulic motor 11, an electromagnetic valve 12, a blow-down valve 13, a water inlet 14, a water outlet 15, a dirt suction device 16, a differential pressure switch 17, a coarse filter screen 18 and a fine filter screen 19;
the foam separation tower 2 comprises a water inlet pipe 21, an aeration pipe 22, a spherical filler 23, a water outlet pipe 24, a foam pipe 25, a vent pipe 26, a water outlet tank 27 and a water level adjusting plate 28;
the water inlet 14 is installed to self-cleaning filter 1 left side outer wall, the filter internally mounted at water inlet 14 place has coarse strainer 18, coarse strainer 18 top internally mounted has thin filter screen 19, the filter externally mounted at thin filter screen 19 place has delivery port 15, differential pressure switch 17 is connected on coarse strainer 18 and the outside of thin filter screen 19, dirt suction devic 16 is installed at self-cleaning filter 1 top, dirt suction device 16 top left side is connected with solenoid valve 12, solenoid valve 12 left side is connected with blowoff valve 13, water conservancy motor 11 is installed on dirt suction device 16 top right side, electric cabinet 10 control solenoid valve 12 and differential pressure switch 17, delivery port 15 connects inlet tube 21 through stainless steel pipe 3, makes sewage shift to second grade purifier from first grade purifier, evenly be equipped with a plurality of shower nozzles 212 on the part that inlet tube 21 stretched into in the foam knockout tower 2, foam pipe 25 is installed to inlet tube 21 top, spherical filler 23 is equipped with in the foam separation tower 2 of inlet tube 21 below, the bottom of foam separation tower 2 is connected with takes aeration head or perforated aeration pipe 22 and take control valve's blow-down pipe 26, the bottom left side is connected with outlet pipe 24, be provided with out basin 27 on the lateral wall of foam separation tower 2, it is vertical in 27 to be equipped with water level adjusting plate 28 to go out basin, water level adjusting plate 28 will go out basin 27 and fall into the communicating district of intaking in upper portion and play pool, outlet pipe 24 includes first outlet pipe and second outlet pipe, the one end of first outlet pipe communicates the bottom of foam separation tower 2, the other end communicates the district of intaking, the one end of second outlet pipe communicates the play pool, the liquid after the other end discharges the foam separation.
The utility model discloses during operation, sewage gets into water inlet 14, gets into coarse strainer 18 colating, the fine filtration of fine screen 19 essence afterwards in proper order and strains, and sewage flows out from delivery port 15 at last. Excess solids accumulate on the inner surface of the fine screen 19 to form a cake of filtrate. As the filter cake is blocked, pressure difference is formed in the automatic cleaning filter 1, once the pressure difference reaches a preset level, the pressure difference switch 17 is opened, the electric control box 10 connected with the pressure difference switch opens the electromagnetic valve 12, and the dirt suction device 16 begins to discharge dirt. Meanwhile, due to the blocking effect of the filter cake, a large amount of sewage can flow towards the hydraulic motor 11, and the sewage with certain kinetic energy can drive the hydraulic motor 11 to work and drive the sewage suction device 16 to start to rotate. Therefore, the dirt absorbing device 16 can absorb and remove filter cake substances in 360 degrees without dead angles. At the same time when the differential pressure switch 17 is turned on, the suction force generating means 161 of the soil pick-up device 16 connected to the electric cabinet 10 is operated to generate the suction force of the soil pick-up device 16.
For the second-stage purification device foam separation tower 2, the sewage inlet pipe 21 is connected with the water outlet 15 in the automatic cleaning filter 1 through the stainless steel pipe 3, so that the sewage is transferred from the first-stage purification device to the second purification device. The aeration pipe 22 and the blow-down pipe 26 constitute an aeration system of the secondary purification apparatus, and serve to stir the liquid by bubbles to prevent the sinking of the contaminants in the apparatus. The sewage passes through the nozzle 212 and is treated by the aeration pipe 22 to generate a water layer and a foam layer, wherein the water layer is the finally purified sewage and is discharged through the water outlet groove 27, and the foam of the foam layer is discharged through the foam pipe 25.